Estimability of Natural Mortality and Other Population Parameters in a Length-Based Model: Pandalus borealis in Kachemak Bay, Alaska
- Authors: C. Fu and T.J. Quinn
- Pub. no.: RP-01-03
- Year: 2000
- Price: Single copies free
Description
The authors compared the robustness of stock assessment model approaches to several parameters—natural mortality (M), catchability (q), a survey gear selectivity parameter (L50), and data imprecision. The results suggest that interannual variations in M and L50 can be estimated, if the underlying values have a trend over time. However, parameter q should be fixed at a chosen value even if it varies over time. Canadian Journal of Fisheries and Aquatic Sciences 57:2420-2432.
